Effects of Biochars and Other Organic Soil Amendments on Plant Nutrient Availability in an Ustoxic Quartzipsamment

Kongthod, Thippawan; Thanachit, Suphicha; Anusontpornperm, Somchai; Wiriyakitnateekul, Wanpen

doi:10.1016/s1002-0160(15)30060-6

Cited by 19 publications

(6 citation statements)

References 17 publications

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“…Mechanisms responsible for increasing plant nutrient availability are increase in soil pH (in acidic soils), nutrient retention (due to increase in cation exchange capacity and surface area) or directly release of nutrients from the biochar surfaces (Clough et al, 2013;DeLuca et al, 2015;Subedi et al, 2016). Biochar has been reported to play an important role in enhancing nutrient retention in soil mostly due to its surface charge density ( (Kongthod et al, 2015). Biochar has been demonstrated to have negatively charged surfaces which increases the adsorption capacity of cations (Lou et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Effect of tillage, biochar, poultry manure and NPK 15-15-15 fertilizer, and their mixture on soil properties, growth and carrot (Daucus carota L.) yield under tropical conditions

Agbede

2021

Heliyon

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Tillage, biochar, poultry manure, NPK fertilizer and their combined application could improve soil quality, sustainability and carrot productivity. The effects of two tillage treatments: conventional tillage (CT) and reduced tillage (RT) each combined with 30 Mg ha À1 biochar (B), 10 Mg ha À1 poultry manure (PM), 300 kg ha À1 NPK 15-15-15 fertilizer, 150 kg ha À1 NPK 15-15-15 fertilizer þ15 Mg ha À1 biochar þ5 Mg ha À1 poultry manure and a control (no biochar/poultry manure/NPK fertilizer) on soil properties, growth and carrot yield were investigated. The research was carried out for two consecutive growing seasons (2018 and 2019) at Owo in the forest-savanna transition zone of Nigeria on a sandy loam. The experiment was laid out in a randomized complete block design in a factorial combination of ten treatments and replicated three times. Reduced tillage had relatively lower soil bulk density, penetration resistance, dispersion ratio and temperature, and had significantly higher (p ¼ 0.05) soil aggregate stability, mean weight diameter, porosity and water content than conventional tillage and these resulted in higher soil pH, organic C, N, P, K, Ca and Mg, growth and fresh root yield of carrot compared with conventional tillage. Reduced tillage increased fresh carrot root yield by 2.3 Mg ha À1 and 2.6 Mg ha À1 for the first and second growing seasons, respectively, compared with conventional tillage, which corresponded to a 11.1% increment for both years. Application of biochar alone, poultry manure alone and complementary application of NPK fertilizer, biochar and poultry manure decreased soil bulk density, penetration resistance, dispersion ratio and temperature and increased soil water content, porosity, aggregate stability and mean weight diameter whereas NPK fertilizer did not improve these soil physical properties. Biochar alone, poultry manure alone, NPK fertilizer alone and combined application of NPK fertilizer, biochar and poultry manure increased soil total N, available P, and exchangeable K, Ca and Mg concentrations compared with the control. Application of biochar alone improved soil pH, OC, K, Ca and Mg better than the NPK fertilizer. Poultry manure improved soil pH, OC, N, K, Ca and Mg better than the NPK fertilizer. Combined application of NPK fertilizer, biochar and poultry manure at sub-optimal rates gave higher soil N, P, K, Ca and Mg concentrations, higher plant, number of leaves, root length, root diameter and fresh carrot root yield compared with NPK fertilizer or biochar or poultry manure alone. Compared with control, NPK fertilizer alone, biochar alone, poultry manure alone and mixture of NPK fertilizer, biochar and poultry manure increased fresh carrot root yield by 43, 24, 46 and 76%, respectively. Reduced tillage in combination with NPK fertilizer, biochar and poultry manure gave the highest fresh carrot root yield. The results indicated that reduced tillage in combination with NPK fertilizer, biochar and poultry manure prove to be an effective and sustainable management strategy for i...

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Section: Discussionmentioning

confidence: 99%

Effect of tillage, biochar, poultry manure and NPK 15-15-15 fertilizer, and their mixture on soil properties, growth and carrot (Daucus carota L.) yield under tropical conditions

Agbede

2021

Heliyon

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“…For mild pyrolysis temperatures < 500 • C, the C and N contents are volatile; however, K starts to volatilize at higher temperatures > 700 • C, which provides an increase in K concentration in the biochar produced at high temperature [71]. Amended soil with 0.3% application rate of cassava stem biochar and rice husk were analyzed for K [72]. The authors reported release of ~148 mg kg −1 of K after 7 d of incubation of amended soil with cassava stem biochar and ~188 mg kg −1 of K after 1 d of incubation for rice husk biochar, being two biochars with high potential for K accumulation in soil.…”

Section: Characterization Of Biochar-amended and Unamended Soilsmentioning

confidence: 99%

Pyrolysis Temperature and Application Rate of Sugarcane Straw Biochar Influence Sorption and Desorption of Metribuzin and Soil Chemical Properties

et al. 2022

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Pyrolysis temperature and application rate of biochar to soil can influence herbicide behavior and soil fertility. The objective was to investigate the effect of soil amendments with application rates of sugarcane straw biochar, produced at different pyrolysis temperatures, on the sorption–desorption of metribuzin in soil. The analysis was performed using high-performance liquid chromatography (HPLC). The treatments were three pyrolysis temperatures (BC350, BC550 and BC750 °C) and seven application rates (0, 0.1, 0.5, 1, 1.5, 5 and 10% w w−1). Amended soil with different application rates decreased H + Al and increased pH, OC, P, K, Ca, Mg, Fe, Mn, CEC and BS contents. Kf values of sorption and desorption of metribuzin were 1.42 and 0.78 mg(1−1/n) L1/n Kg−1, respectively, in the unamended soil. Application rates < 1% of biochar sorbed ~23% and desorbed ~15% of metribuzin, similar to unamended soil, for all pyrolysis temperatures. Amended soil with 10% of BC350, BC550 and BC750 sorbed 63.8, 75.5 and 89.4% and desorbed 8.3, 5.8 and 3.7% of metribuzin, respectively. High pyrolysis temperature and application rates of sugarcane straw biochar show an ability to immobilize metribuzin and improve soil fertility, which may influence the effectiveness in weed control.

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“…However, in some situations, the application of biochar showed negative or neutral effects in P loss potential of soil. For example, the application of rice husk biochar to a sandy soil (Nampong soil) showed no significant effects on P loss amounts compared to that of untreated soil (Kongthod et al, 2015). The application of wood biochar to significantly increased P leaching from soil in an apple orchard (Hardie et al, 2015).…”

Section: Loss Potential Of P Applied From Manure and Biocharmentioning

confidence: 99%

Biochar: a potential route for recycling of phosphorus in agricultural residues

Dai

Tan

et al. 2016

GCB Bioenergy

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Phosphorus (P) is a finite and dwindling resource, while an enormous amount of P flows to agricultural residues with increasing agricultural production. Therefore, the recycling of P in agricultural residues is critical for P sustainability in agricultural systems, which is dominated by the route of direct land application. Biochar production from agricultural residues and its subsequent land application have been suggested as solutions for waste biomass disposal, carbon sequestration, soil amendment/remediation, and crop production promotion. However, little attention has been paid to the contrasting effects of the land application of biochar vs. agricultural residues on the recycling of P accumulated in agricultural residues. Phosphorus in agricultural residues can be retained and transformed into stable forms of P in the resulting biochar. Thus, compared to agricultural residues, biochar provides lower amounts of labile P and releases its P more slowly while providing a long-lasting P source, and the loss potential of P from biochar is reduced by low mobility of its P, indicating that biocharbased P recycling route could substantially promote P recycling by acting as sustainable P source and diminishing the loss of P applied to soil.

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Effects of Biochars and Other Organic Soil Amendments on Plant Nutrient Availability in an Ustoxic Quartzipsamment

Cited by 19 publications

References 17 publications

Effect of tillage, biochar, poultry manure and NPK 15-15-15 fertilizer, and their mixture on soil properties, growth and carrot (Daucus carota L.) yield under tropical conditions

Effect of tillage, biochar, poultry manure and NPK 15-15-15 fertilizer, and their mixture on soil properties, growth and carrot (Daucus carota L.) yield under tropical conditions

Pyrolysis Temperature and Application Rate of Sugarcane Straw Biochar Influence Sorption and Desorption of Metribuzin and Soil Chemical Properties

Biochar: a potential route for recycling of phosphorus in agricultural residues

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